Viper Won't Start After 10 Miles

[rhollermann]

Hello,

I purchased a Viper RTX on Saturday. It started and ran fine at the dealer. I drove 2.5 hours home with it on the trailer. It was about -10F, it probably took three 5 second cranks on the starter before it started, but it did start. I drove it 10 miles that day and it sat outside over night. It did get down to -25F that night, but during the next day when I tried to start the sled, if was 5F. The fuel pump ran, and the sled cranked over quickly enough, but it would not fire at all. There was ethanol in the gas, and I added isopropyl to the tank.

Does anyone have any ideas or thoughts on what I could look at? I called the dealer, and of course, they said it was just too cold. Is a bad relay possible with the gauges, fuel pump, and starter functioning?

Thanks,
Ross

 

[Nytro40th]

Check your battery. I have ran my nytro same engine and battery at -30 no issues.

 

[allyammies]

Dealer said it was too cold?It is called a snowmobile!

 

[yukon yamaha]

I know this is gonna sound silly but please try it...... or at least humour me ...... cycle the fuel pump three times and before you turn the sled over take off the fuel cap..... sounds crazy but I had to do that this weekend a few times.

 

[09nytro]

Did you turn it off with kill switch ?

 

[fxnytroxtx]

Did you turn it off with kill switch ?

Are you not supposed to? Just asking

 

[09nytro]

No you can but I know cat guys where having some problems with the kill switch going bad or not working right ....
Hold it down in the run position and turn the key to see if it will start ......I always bypass them on my sleds .....don't need them ......

 

[baggs66]

Don't add ISO to ethanol that's just adding more alcohol to your fuel which will make it hard to start the colder it gets.

 

[09nytro]

Cats will turn over with kill in the off position !

 

[rhollermann]

I have cycled the fuel pump several times before without turning the engine over...nothing changed. I didn't take the cap off though. What is that supposed to accomplish?

The sled was shut off with the key, not the kill switch.

I am currently charging the battery. It did turn the engine over just fine at first, however, after a lot of cranking, it flashed a code corresponding to low system voltage.

I only added the isopropyl after it didn't start at first...thought I would give it a try.

 

[yukon yamaha]

i would cycle it 2-3 times and when i took the cap off it sounded like it was exhaling.

 

[mewaschuk]

Batteries are only ~75% charged when the acid is put in. If the battery wasn't then fully charged it may be too low??? Or attempted to be charged too soon after adding acid?

 

[Alpha]

Batteries are only ~75% charged when the acid is put in. If the battery wasn't then fully charged it may be too low??? Or attempted to be charged too soon after adding acid?

Yes what he said ^^^ you're lucky if a new battery is at 75% when the water is added. Acid batteries need to be charged once the water is added. You dealer probably did not charge your battery on arrival. Charge your battery and it should be fine no matter the temp.

 

[09nytro]

You put in the acid then let the battery relax for 5 to 10 min then charge it , you have to let the acid soak into the plates before you charge most dealers do not do that because it takes to long

 

[SledFreak]

To me... It sounds like a relay. do a search in the Nytro form and you should see something. Charge the battery and bring it in a warm garage and get the sled good and warm and thawed out. Then try to start it. If it turns out to be a relay, then put dio electric grease on all of the relays and plug them back in. Carry a spare relay. You could also have ice in the gas...